We compared the answers to the questions before both courses and immediately after the course organized in 2019. Results: In the 2019 preliminary exam the average percentage of correct answers was 58%, while in the final exam it was 83%. The average percentage of correct answe...
(4) The extent to which the program is described in writing is less important then how effective it is in practice. As the size of a worksite or the complexity of a hazardous operation increases, however, the need for written guidance increases to ensure clear communications of policies and ...
55.It is no good try to remember grammatical rules.You need to practice what you have learned。 A B C D Part IV Cloze(10%) Directions: There are 20 blanks in the following passage, and for each blank there are 4 choices marked A, B, C and D at the end of the passage.You shoul...